Home / 28,034.40-42,100.20-27,159.60

Finding the Fourth Proportional to 28,034.40, 42,100.20 and 27,159.60

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Solution

The fourth proportional to 28,034.40, 42,100.20 and 27,159.60 is: 40,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.40 : 42,100.20 = 27,159.60 : x
  2. Step 2: Convert to fraction form
    28,034.40/42,100.20 = 27,159.60/x
  3. Step 3: Cross multiply
    28,034.40x = 42,100.20 × 27,159.60
  4. Step 4: Simplify right side
    28,034.40x = 1,143,424,591.92
  5. Step 5: Solve for x
    x = 1,143,424,591.92/28,034.40
  6. Step 6: Final answer
    x = 40,786.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.